| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.ide.dnd; |
| |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.ide.CopyPasteManager; |
| import com.intellij.openapi.util.Condition; |
| import com.intellij.openapi.util.text.StringUtil; |
| import com.intellij.openapi.vfs.VfsUtil; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.util.containers.ContainerUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.awt.datatransfer.DataFlavor; |
| import java.awt.datatransfer.FlavorMap; |
| import java.awt.datatransfer.SystemFlavorMap; |
| import java.awt.datatransfer.Transferable; |
| import java.io.File; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| public class FileCopyPasteUtil { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.ide.dnd.FileCopyPasteUtil"); |
| |
| private FileCopyPasteUtil() { } |
| |
| public static DataFlavor createDataFlavor(@NotNull final String mimeType) { |
| return createDataFlavor(mimeType, null, false); |
| } |
| |
| public static DataFlavor createDataFlavor(@NotNull final String mimeType, @Nullable final Class<?> klass) { |
| return createDataFlavor(mimeType, klass, false); |
| } |
| |
| public static DataFlavor createDataFlavor(@NotNull final String mimeType, @Nullable final Class<?> klass, final boolean register) { |
| try { |
| final DataFlavor flavor = |
| klass != null ? new DataFlavor(mimeType + ";class=" + klass.getName(), null, klass.getClassLoader()) : new DataFlavor(mimeType); |
| |
| if (register) { |
| final FlavorMap map = SystemFlavorMap.getDefaultFlavorMap(); |
| if (map instanceof SystemFlavorMap) { |
| ((SystemFlavorMap)map).addUnencodedNativeForFlavor(flavor, mimeType); |
| } |
| } |
| |
| return flavor; |
| } |
| catch (ClassNotFoundException e) { |
| LOG.error(e); |
| //noinspection ConstantConditions |
| return null; |
| } |
| } |
| |
| public static DataFlavor createJvmDataFlavor(@NotNull final Class<?> klass) { |
| return createDataFlavor(DataFlavor.javaJVMLocalObjectMimeType, klass, false); |
| } |
| |
| public static boolean isFileListFlavorAvailable() { |
| return CopyPasteManager.getInstance().areDataFlavorsAvailable( |
| DataFlavor.javaFileListFlavor, LinuxDragAndDropSupport.uriListFlavor, LinuxDragAndDropSupport.gnomeFileListFlavor |
| ); |
| } |
| |
| public static boolean isFileListFlavorAvailable(@NotNull DnDEvent event) { |
| return event.isDataFlavorSupported(DataFlavor.javaFileListFlavor) || |
| event.isDataFlavorSupported(LinuxDragAndDropSupport.uriListFlavor) || |
| event.isDataFlavorSupported(LinuxDragAndDropSupport.gnomeFileListFlavor); |
| } |
| |
| public static boolean isFileListFlavorAvailable(@NotNull DataFlavor[] transferFlavors) { |
| for (DataFlavor flavor : transferFlavors) { |
| if (flavor != null && (flavor.equals(DataFlavor.javaFileListFlavor) || |
| flavor.equals(LinuxDragAndDropSupport.uriListFlavor) || |
| flavor.equals(LinuxDragAndDropSupport.gnomeFileListFlavor))) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Nullable |
| public static List<File> getFileList(@NotNull final Transferable transferable) { |
| try { |
| if (transferable.isDataFlavorSupported(DataFlavor.javaFileListFlavor)) { |
| @SuppressWarnings({"unchecked"}) |
| final List<File> fileList = (List<File>)transferable.getTransferData(DataFlavor.javaFileListFlavor); |
| return ContainerUtil.filter(fileList, new Condition<File>() { |
| @Override |
| public boolean value(File file) { |
| return !StringUtil.isEmptyOrSpaces(file.getPath()); |
| } |
| }); |
| } |
| else { |
| return LinuxDragAndDropSupport.getFiles(transferable); |
| } |
| } |
| catch (Exception ignore) { } |
| |
| return null; |
| } |
| |
| @NotNull |
| public static List<File> getFileListFromAttachedObject(Object attached) { |
| List<File> result; |
| if (attached instanceof TransferableWrapper) { |
| result = ((TransferableWrapper)attached).asFileList(); |
| } |
| else if (attached instanceof DnDNativeTarget.EventInfo) { |
| result = getFileList(((DnDNativeTarget.EventInfo)attached).getTransferable()); |
| } |
| else { |
| result = null; |
| } |
| return result == null? Collections.<File>emptyList() : result; |
| } |
| |
| @NotNull |
| public static List<VirtualFile> getVirtualFileListFromAttachedObject(Object attached) { |
| List<VirtualFile> result; |
| List<File> fileList = getFileListFromAttachedObject(attached); |
| if (fileList.isEmpty()) { |
| result = Collections.emptyList(); |
| } |
| else { |
| result = new ArrayList<VirtualFile>(fileList.size()); |
| for (File file : fileList) { |
| VirtualFile virtualFile = VfsUtil.findFileByIoFile(file, true); |
| if (virtualFile == null) continue; |
| result.add(virtualFile); |
| // detect and store file type for Finder-2-IDEA drag-n-drop |
| virtualFile.getFileType(); |
| } |
| } |
| return result; |
| } |
| } |